The Stanford Prison Experiment

Man can no longer pretend that he can put an "Individual" into a position of "Ultimate Power" and not expect that individual to become weak to the "Temptation of Greed and Power". We have witnessed this downfall of man sense the beginning of recorded history.
This is the Temptation that Christ was said to have been given via the Devil,(the dark side of man, the misguided half, his mind set), his belief that he is separate from the Whole.
There have been many studies on this, such as:

The Stanford prison experiment was a study of the psychological effects of becoming a prisoner or prison guard. The experiment was conducted at Stanford University from August 14 to August 20 of 1971 by a team of researchers led by psychology professor Philip Zimbardo.[1] It was funded by the US Office of Naval Research[2] and was of interest to both the US Navy and Marine Corps as an investigation into the causes of conflict between military guards and prisoners.

Twenty-four male students out of 75 were selected to take on randomly assigned roles of prisoners and guards in a mock prison situated in the basement of the Stanford psychology building. The participants adapted to their roles well beyond Zimbardo's expectations, as the guards enforced authoritarian measures and ultimately subjected some of the prisoners to psychological torture. Many of the prisoners passively accepted psychological abuse and, at the request of the guards, readily harassed other prisoners who attempted to prevent it. The experiment even affected Zimbardo himself, who, in his role as the superintendent, permitted the abuse to continue. Two of the prisoners quit the experiment early and the entire experiment was abruptly stopped after only six days. Certain portions of the experiment were filmed and excerpts of footage are publicly available.